/* 重置所有HTML元素的默认样式 */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0; /* 移除外边距 */
	padding: 0; /* 移除内边距 */
	border: 0; /* 移除边框 */
	font-size: 100%; /* 设置字体大小为100% */
	font: inherit; /* 继承字体样式 */
	vertical-align: baseline; /* 设置垂直对齐方式为基线对齐 */
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block; /* 设置显示方式为块级元素 */
}

body {
	line-height: 1; /* 设置行高为1 */
}

ol, ul {
	list-style: none; /* 移除列表样式 */
}

blockquote, q {
	quotes: none; /* 移除引号样式 */
}

blockquote:before, blockquote:after,
q:before, q:after {
	content: ''; /* 设置内容为空字符串 */
	content: none; /* 移除内容 */
}

table {
	border-collapse: collapse; /* 合并边框 */
	border-spacing: 0; /* 设置边框间距为0 */
}